

/* 轮播图 */

.imgbox {
    position: relative;
}
.imgbox>i{
    position: absolute;
    width: 40px;
    height: 40px;
    z-index: 2;
    top: 50%;
    transform: translateY(-50%);
    text-indent: -9999px;
    border-radius: 50%;
    cursor: pointer;
    background-color: rgb(179,207,221);
    
}
.imgleft {  
    left: 50%;
    margin-left: -650px;
    background: url(../images/left.png) no-repeat 15px 10px;
}

.imgright {
    left: 50%;
    margin-left: 600px;
    background: url(../images/right.png) no-repeat 15px 10px;
}

.dian {
    width: 100px;
    height: 20px;
    position: absolute;
    bottom: 0;
    left: 47%;
    box-sizing: border-box;
}

.dian ul li {
    display: block;
    float: left;
    width: 13px;
    height: 13px;
    background-color: rgb(214, 214, 216);
    margin-left: 7px;
    border-radius: 50%;
}

.dian ul li:hover {
    background-color: rgb(41, 184, 245);
    border: 1px solid rgb(41, 184, 245);
}

/* 主干部分 */

main {
    height: 640px;
    display: flex;
    justify-content: center;
}

/* .maincontent{
    width: 100%;

} */
.mainleft {
    width: 660px;
    height: 100%;
    display: flex;
    flex-wrap: wrap;
}

.mainright {
    width: 300px;
    height: 650px;
}

.firsttop {
    width: 650px;
    height: 50px;
    position: relative;
    display: flex;
    align-items: baseline;
    margin: 0 20px;
}

.firsttop>div {
    display: flex;
    flex-wrap: nowrap;
    /* width: 220px;
    height: 60px; */
}

.firsttop div>h1 {
    /* display: block; */
    font-size: 18px;
    color: #333;
    font-family: "微软雅黑";
    font-weight: bold;
    line-height: 50px;
}

.firsttop div>span {
    font-size: 14px;
    color: rgb(159, 159, 159);
    font-family: "微软雅黑";
    line-height: 55px;
    margin-left: 15px;
}

.firsttop a {
    display: block;
    font-size: 16px;
    line-height: 55px;
    color: rgb(73, 191, 247);
    position: absolute;
    right: 1%;
    top: 0;
}

.firsttop a:hover {
    text-decoration: none;
}

.second {
    width: 170px;
    height: 240px;
    border-radius: 8px;
    box-shadow: 2px 4px 0px 1px rgba(218, 215, 215, 0.5);
    margin: 23px 20px;
}

.second-top {
    width: 170px;
    height: 50%;
}

.second_bottom {
    width: 150px;
    height: 45%;
    border: 1px solid rgb(245, 245, 245);
}

.second-bottom p {
    font-size: 14px;
    font-weight: bold;
    margin: 8px 0 3px 10px;
}

.second-bottom img {
    width: 65px;
    height: 13px;
    margin: 2px 0 3px 10px;
}

.second-bottom span:nth-child(3) {
    font-size: 12px;
    color: rgb(253, 196, 91);
    margin: 0 4px;
}

.second-bottom div {
    width: 60px;
    height: 20px;
    border-radius: 5px;
    background-color: rgb(73, 195, 244);
    margin: 5px 0 6px 10px;
}

.second-bottom div>span {
    /* display: inline-block; */
    text-align: center;
    font-size: 12px;
    color: #fff;
    margin: 0 0 0 6px;
    line-height: 20px;
}

.second-bottom span:nth-child(5) {
    font-size: 14px;
    color: rgb(183, 183, 183);
    margin: 0 10px;
}

.mainleft .second:nth-child(4)>.second-bottom div {
    width: 40px;
    height: 20px;
}

.list-one {
    width: 310px;
}

.discuss {
    width: 300px;
    height: 90px;
    font-family: "微软雅黑";
}

.discuss>span:first-child {
    font-size: 22px;
    font-weight: bold;
    line-height: 150px;
    margin: 0 10px;
}

.discuss>span:nth-child(2) {
    color: rgb(96, 196, 248);
}

.list-two ul li {
    font-size: 16px;
    margin: 10px 10px;
}

.list-two ul li>span {
    display: inline-block;
    text-align: center;
    line-height: 18px;
    border-radius: 5px;
    width: 20px;
    height: 18px;
    background-color: rgb(255, 117, 75);
    font-size: 13px;
    color: #fff;
    font-family: "微软雅黑";
}

.list-two ul>p {
    font-size: 14px;
    margin: 0 10px;
    color: rgb(182, 182, 182);
}

.study {
    /* position: relative; */
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
    height: 430px;
    background-color: rgb(247, 248, 250);
}

.studytop {
    /* position: relative; */
    left: 331px;
    width: 900px;
    padding-top: 15px;
    /* border: 1px solid; */

}

.studytop>span:nth-child(1) {
    font-size: 22px;
    font-weight: bold;
    color: #333;
    margin-left: 10px;
}

.studytop>span:nth-child(2) {
    font-size: 16px;
    color: #333;
    margin-left: 5px;
}

.studytop>a {
    float: right;
    font-size: 14px;
    color: rgb(96, 196, 248);
    line-height: 40px;
    /* margin-right: 7%; */
}

.studytop>a:hover {
    text-decoration: none;
}

.studybox {
    width: 950px;
    height: 360px;
    /* position: relative; */
    display: flex;
    justify-content: center;
    top: 0;
    left: 20%;
}

.studyone {
    width: 230px;
    height: 350px;
    margin-left: 1px;
    margin-top: 5px;
}

.studyimg {
    width: 220px;
    height: 280px;
    margin: 10px 10px;
}

.studytext {
    width: 220px;
    margin: 10px 10px;
}

.studytext>span {
    font-size: 16px;
    font-weight: bold;
    color: #333;
}

.studytext>p {
    font-size: 14px;
    color: rgb(193, 193, 193);
}

.select {
    width: 960px;
    /* border: 1px solid black; */

}

.select-top {
    width: 100%;
    height: 45px;
    /* height: 100px; */
}

.select-top>span:nth-child(1) {
    font-size: 22px;
    font-weight: bold;
    line-height: 75px;
    margin-left: 25px;
    /* color: #333; */
}

.select-top>span:nth-child(2) a {
    float: right;
    font-size: 13px;
    color: rgb(96, 196, 248);
    line-height: 50px;
    margin-right: 20px;
    margin-top: 20px;
}

.select-top>span:nth-child(2) a:hover {
    text-decoration: none;
}

.select-boottom {
    width: 950px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.select-box {
    width: 210px;
    height: 270px;
    margin-left: 10px;
    margin-top: 20px;
    border-radius: 8px;
    box-shadow: 1px 5px 5px 1px rgba(0, 0, 0, .3);

}

.select-text {
    position: relative;
}

.select-one {
    width: 110px;
    height: 54px;
    position: absolute;
    top: -20px;
    left: 20px;

}

.select-one>img {
    width: 50px;
    height: 45px;
    border-radius: 8px 8px 0 0;
}

.select-one>span {
    line-height: 65px;
}

.select-two>span {
    width: 60px;
    height: 20px;
    background-color: rgb(96, 196, 248);
    color: #fff;
    font-size: 12px;
    line-height: 20px;
    text-align: center;
    position: absolute;
    top: -10px;
    right: 0px;
    border-radius: 5px 0 0 5px;

}

.select-three {
    margin-top: 50px;
    margin-left: 15px;
    width: 185px;
    height: 60px;
    line-height: 25px;
    color: rgb(170, 170, 170);
}

.footerbox {
    width: 100%;
    height: 410px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 50px;
    background-color: rgb(247, 248, 250);
}

.footer-top {
    width: 950px;
    height: 50px;
    padding-top: 10px;
}

.footer-top>span:nth-child(1) {
    font-size: 22px;
    font-weight: bold;
    color: #333;
    line-height: 50px;
    margin-left: 20px;
}

.footer-top>span:nth-child(2) {
    float: right;
    font-size: 14px;
    margin-right: 10px;
    margin-top: 20px;
    color: rgb(96, 196, 248);
}

.footer-bottom {
    width: 950px;
    margin-top: -70px;
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    /* border: 1px solid black; */
}

.footer-bottombox {
    width: 205px;
    height: 270px;
    margin-left: 20px;
    margin-top: 20px;
    /* border: 1px solid red; */
    border-radius: 8px 8px 8px 8px;
}

.footerimg {
    position: relative;
}

.footerimg>img {
    border-radius: 8px 8px 0 0;
}

.footertext {
    background-color: rgb(255, 255, 255);
    border-radius: 0 0 8px 8px;
}

.footerimg-text {
    width: 205px;
    height: 30px;
    background-color: rgba(0, 0, 0, 0.2);
    position: absolute;
    bottom: 0;
}

.footerimg-text>span {
    font-size: 13px;
    line-height: 30px;
    /* text-align: center; */
    margin-left: 15px;
    color: rgb(243, 244, 244);
}

.footertext>span {
    font-size: 15px;
    margin-left: 20px;
    line-height: 30px;
    margin-top: 15px;
}

.footertext>p {
    font-size: 12px;
    margin-left: 20px;
    line-height: 30px;
    color: rgb(193, 193, 193);
}

.teacher>img {
    margin-left: 20px;

}

.teacher>span:nth-child(2) {
    font-size: 14px;
    font-weight: bold;
    color: rgb(193, 193, 193);
    line-height: 50px;

}

.teacher>span:nth-child(3) {
    font-size: 16px;
    font-weight: bold;
    color: rgb(122, 122, 122);
}

.articlebox {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.articletop {
    width: 960px;
    height: 50px;
    /* border: 1px solid black; */
}

.articletop>span:nth-child(1) {
    font-size: 22px;
    font-weight: bold;
    color: #333;
    line-height: 50px;
    margin-left: 20px;
}

.articletop>span:nth-child(2) {
    font-size: 14px;
    float: right;
    color: rgb(96, 196, 248);
    line-height: 60px;
    margin-right: 20px;

}

.articlebottom {
    width: 960px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    /* border: 1px solid black; */
}

.articlethree {
    width: 425px;
    height: 160px;
    display: flex;
    flex-wrap: nowrap;
    margin-left: 25px;
    margin-right: 25px;
    margin-top: 15px;
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid #fff;
    box-shadow: 1px 2px 5px 2px rgba(0, 0, 0, .3);

}

.articleone>img {
    border-radius: 8px;
    
}

.articleone {
    width: 160px;
    height: 130px;
    margin-top: 15px;
    margin-left: 15px;
    margin-bottom: 5px;
}

.articletwo {
    width: 250px;
    /* border: 1px solid black; */
    /* margin-left: 10px;
    margin-top: 15px; */
}

.articletwo>span {
    display: inline-block;
    height: 60px;
    font-size: 16px;
    font-family: "微软雅黑";
    line-height: 26px;
    margin-top: 20px;
    margin-right: 15px;
    /* margin-top: 30px; */
}

.articletwo>p {
    display: block;
    margin-top: 15%;
    line-height: 30px;
    color: rgb(96, 196, 248);
}
